Question

Design a selector device, which selects a good product and refuse the bad product, in a glass bottle products factory? (the physical way)

Answer 1

• Two terminal selector with good scalability is essential for
high-density crossbar memory arrays.
• Nonlinearity and asymmetry in device characteristics can
enable device selection functions. Rectifying diodes, volatile
switches, and nonlinear devices can be used as selectors.
• Selectors reduce sneak leakage and voltage/current decay,
which helps to ensure sufficient operating voltage/current.
• Voltage dividing effect of selectors reduce disturbance but
also requires higher array Vdd for CBA operation.
• Selectors with stronger exponential dependence are more
effective in improving operation margins.
• CBA design and optimization have to consider the balance
between memory elements and selector devices.